Bookbinding machine



Feb. 18, 1941.

E. W. PALMER ETAL BOOKBINDING MACHI NE 1 Filed Nov. 14, 1940 4 Sheets-Sheet 1 ATTORNEYS Feb. 18, 1941. E. w. PALMER ETAL BOOKBINDING MACHI NE Filed Nov. 14, 1940 4 Sheets-Sheet 2 INVENTQRS m4 W MM ATTO R N EYS Feb. 18, 1941.

BOOKBINDING MACHINE Filed Nov. 14,- 1940;

Will/g E. W. PALMER ETAL 4 Sheets-Sheet INVENTORS ATTORNEYS Feb. 18, 1941. E. w. PALMER EI'AL BOOKBINDING MACHINE Filed Nov. 14, 1940 4 Sheets-Sheet 4 Patented Feb. 18, 1941 UNITED STATES PATENT OFFICE BOOKBINDING MACHINE ware Application November 14, 1940, Serial No. 365,592

21 Claims.

Our invention consists in a novel and efficient machine for providing book bodies with hinge strips, said machine including the following elements: means for advancing successive book bodies along a suitable support; means for causing the edges of a wide tape to overlap the opposite sides of the advancing book bodies; means for securing the overlapping edges to the book bodies; means for slitting the wide tape into two narrow tapes; and means for severing the narrow tapes between successive book bodies to form the hinge strips therefor.

Our invention more specifically comprises the following elements: means for gumming one face of the wide tape along its opposite edges; means for causing one gummed edge to overlap and adhere to the under sides of the advancing book bodies; front and back gage bars for guiding the book bodies; a former bar; means for turning the wide tape thereover to cause the other gummed edge of the wide tape to overlap and adhere to the upper sides of the advancing book bodies; means for drilling the overlapping edges and book bodies and stitching them together; means on the former bar for slitting the wide tape; and means controlled by the movement of the book bodies and preferably operated by the stitcher for severing the narrow tapes between successive book bodies to form the hinge strips. Means may also be employed for gluing the stitches, to lock them.

A practical embodiment of our invention is represented in the accompanying drawings, in which Fig. 1 represents a detail side view, partly in section, of the machine;

Fig. 1 represents a continuation of Fig. 1 from the line ac-x;

Fig.2 represents a detail section showing the drive for the stitch gluing mechanism;

Fig. 3 represents a detail horizontal section with the stitcher removed;

Fig. 4 represents a detail enlarged side view 1 showing the rotary brush element of the wide 45 tape turning mechanism;

Fig. 5 represents a top plan view of the same;

Fig. 6 represents a cross section .taken in the plane of the line VI-VI of Fig. 4;

5 Fig. '7 represents a detail side view of the other elements of the wide tape turning-mechanism;

Fig. 8 represents 'a top plan view .of the same;

Fig. 9 represents [a detail cross section taken in the plane of the line IX--IX of Fig. 7;

Fig. 10 represents a detail side view showing more clearly the mountings for the former bar and the rear edge gage bar;

Fig. 11 represents a detail plan view of the same;

Fig. 12 represents a detail cross section taken.

Fig. 14 represents a transverse vertical section.

taken in the plane of the line XIV-XIV of Fig. 10;

Fig. 15 represents a detail plan View showing the sevenal steps in the attaching of the wide tape to the book bodies and the slitting and severing of the tape to form the hinge strips;

Fig. 16 represents a cross section taken in the plane of the line XVIXV I of Fig. 15;

Fig. 17 represents a cross section taken in the plane of the line XVIL-XVII .of Fig. 15;

Fig. 18 represents a cross section taken in the plane of the line XVIII-XVIII of Fig. 15

Fig. 19 represents a detail face View partly in section showing the web severing knife in its lowered position;

Fig. 20 represents a similar view showing the knife in its raised position;

Fig. 21 represents an edge view showing the knife in its raised position;

Fig. 22 represents a detail edge view with the knife in its lowered position;

Fig. 23 represents a detail plan view of a modified form of the trip lever which controls the operation of the knife; and

Fig. 24 represents a detail side elevation, partly in section, of the same.

The supporting table is denoted by l. The magazine for supplying the book bodies is denoted by 2. The intermittently moving endless conveyor is denoted by 3 and it is provided with blocks 4 positioned to advance successive book bodies in spaced relationship from the magazine into positions for the several operations thereon.

The support for the roll of wide tape which is later to form the hinge strips for the book bodies;

is denoted by 5. A means 6 is provided for gumming one face of the wide tape 1 along the opposite edges thereof, said gummed edges being denoted by 8 and 9.

A longitudinally disposed guard 10 is located in the magazine 2 in position to prevent the under side of the bottom book body from contacting with the gummed edge 8 of the Wide tape 1 until the book body has left the magazine.

The book body front and back gage bars form guides between which the book bodies are advanced from the magazine by the endless conveyor 3.

The longitudinally disposed former bar around which the wide tape is turned to cause its free gummed edge 9 to overlap and adhere to the upper sides of the book bodies after they have left the magazine, is denoted by II. The means for turning the tape may comprise a rotary brush I2, a curved guide I3 and the spring pressed finger I4, which finger coacts with the former bar II to hold the wide tape in its turned-over position as it approaches the stitcher.

The front gage bar I5 is adjustable toward and away from the back gage bar for different widths of book bodies. The back gage bar is herein shown as made in two alined separated sections I6 and I1. End supports I8 and I9 are provided for the first section I6 of the back gage bar, the end support I9 uprising from the table I. The second back gage bar section II is supported only at one end, in the present instance by a downward branch 2| secured to the table supporting frame 22.

The former bar II is adjustably supported at one end by the magazine 2 and at the other end by the cutter support to be hereinafter described.

The stitcher in the present instance includes bottom and top drills 23 and 24, the needle 25 and their usual operating mechanisms which serve to cause the bottom drill 23 to cut holes upwardly part way through the book bodies and their associated wide tape, and the top drill 24 to complete the holes, said needle 25 operating through said holes with its thread to stitch the overlapping edges of the Wide tape to the book bodies as the holes are completed.

The means for slitting the wide tape I into upper and lower tapes after the overlapping edges of the wide tape have been stitched to the book bodies, comprises a slitting knife 25 projecting rearwardly from the former bar I I.

A guillotine cutter support 27 is mounted on the table I, the knife 28 of which cutter is operated at predetermined intervals by the stitcher to sever the wide tape between successive book bodies to form hinge strips therefor. Means controlled by the advance movement of the book bodies are provided for permitting the operation of the knife at the desired intervals, said means comprising the following elements: a trip lever 29 is held normally depressed by contact with the under sides of the book bodies and permitted to rise into the space between successive book bodies when opposite the same. This trip lever 29 is provided with a pinion 38 which meshes with a rack 3| carrying a cam bar 32. This cam bar 32 is provided at its upper end with a cam 33 so that when the cam bar is lifted by the upward swing of the trip lever into the space between two successive book bodies the said cam will engage a cam 34 on a spring retracted latch 35 carried by the shank 36 of the knife 28 to force the latch into a slot 31 in the reciprocating bar 38 operatively connected to the stitcher. The downward movement of the bar 38 will cause it to engage the latch 35 and thereby move the knife 28 downwardly between the adjacent ends of the back gage bar sections I6 and I1 and through a slot 39 in the table I.

Springs 4|] may be used to hold the tape severing knife 28 in its raised inoperative position. A spring M is provided for yieldingly holding the trip lever 29 in its raised position.

. to cause the gummed free edge Means may be provided for gluing the exposed stitches along one of the hinge strips of each book body, said means comprising a, glue fountain 42 and its glue applying roll 43, said roll being located in the present instance in position 5 to project upwardly through a slot 44* in the table. This gluer may be driven from the endless conveyor 3 through the train of gears 44, 45, 46 (shown in Fig. 2).

Pressure means may be applied to the upper 1 sides of the book bodies as they pass from the magazine 2 to the delivery end of the endless conveyor 3, said means comprising the pressure roller 4! at the magazine, the pressure rollers 48 located at the cutter and the'pressure rollers 15 48 located at the gluer.

A modified form of the trip lever 59 (shown in Figs. 23 and 24) may be provided with an extension foot 5| to accommodate the trip lever to successive book bodies having longer spaces 20 between them.

I To by-pass the free portion of the lower narrow tape around the end support I9 of the back gage bar section I6 the table I may be provided with an open ended curved slot 52, through which the said free portion of the lower narrow tape is passed beneath said support I9.

In operation, the wide tape as it passes from the supply roll carried by the support 5 is led through the gummer 6 to gum one face of the 30 tape along its opposite edges. The tape is then led to and along the table I with one gummed edge passing through the magazine 2 between the endless conveyor 3 and the guard I0. After the bottom book body is advanced from the mag- 35 azine by the endless conveyor the under side of the book body will contact with and adhere to the gummed edge 8 of the wide tape. It will be seen that the wide tape is thus advanced by the movement of the book bodies. As the book 40 bodies reach the turning mechanism the transversely disposed rotary brush I2 serves to turn the wide tape around the bar I I sufiiciently to cause the tape to be engaged by the curved guide I3 and completely turned over the former bar 45 9 of the wide tape to overlap and adhere to the upper sides of the book bodies. The spring finger I4 serves to exert pressure upon the turned-over edge of the wide tape to cause the gummed edge 9 toso adhere to the book body.

The book bodies with the turned-over wide tape are then advanced by the endless conveyor 3 into position to be drilled and stitched. The wide tape is then slit by the knife 26 into two -55 narrow tapes. The free portion of the lower narrow tape is passed through the slot 52 beneath the back gage bar support, I9'to bypass the said free portion around said support. .After the slitting operation thev narrow tapes and the 60 line of stitchinglare severed between successive book bodies, said severing mechanism operating only when the free end of its controlling trip lever 29 is permitted to swing upwardly into the space between two successive book bodies. It is understood that the trip lever 29 is held de- 'pressed by its contact with the under sides of the advancing book bodies except when the spaces between successive book bodies come opposite the free end of the trip lever. 7

The book "bodies are then advanced to a position where the exposed stitching along the under side hinge strips may be glued in' the usual manner, to lock the stitches.

It will be understood that theformer bar is '75 vertically adjustable to center it with respect to the wide tape irrespective of the width of the book bodies. It will also be understood that the back gage bar sections may be either vertically 5 adjustable or replaceable by other bar sections of a diiierent width to center the back gage bar with respect to different widths of book bodies.

While we have shown the stitcher as a sewing machine, it is evident that we wish to cover other means, such as staplers, if so desired, without departing from the spirit and scope of our invention.

The machine shown, described and claimed herein is also shown and described but not claimed in our copending method application filed of even date herewith, its Serial No. being 365,593.

It isalso evident that various changes may be resorted to in the construction, form and arrangement of the several parts without departing from the spirit and scope of our invention, and hence we do not intend to be limited to the particular embodiment herein shown and described, but

What we claim is:

1. In combination, book body advancing means, means for supplying a wide tape, means for causing the edges of the wide tape to overlap the opposite sides of the book bodies, means for securing said overlapped edges to the book bodies, and means for slitting the wide tape into narrow tapes.

2. In combination, book body advancing means, means for supplying a wide tape, means for causing the edges of the wide tape to overlap the opposite sides of the book bodies, means for securing said overlapped edges to the book bodies, means for slitting the wide tape into narrow tapes, and means for severing the narrow tapes between 40 successive book bodies.

3. In combination, book body advancing means, means for supplying a wide tape, means for gumming the edges of the wide tape, means for causing the gumrned edges to overlap and adhere to 45 theopposite sides of the book bodies, means for stitching said overlapped edges to the book bodies, means for slitting the wide tape into narrow tapes, and means for severing the narrow tapes between successive book bodies.

4. In combination, book body advancing means, means for supplying a wide tape, means for gum-- ming the edges of the wide tape, means for causing the gumrned edges to overlap and adhere to the opposite sides of the book bodies, means for 55 stitching said overlapped edges to the book bodies, means for slitting the wide tape into narrow tapes, means for severing the narrow tapes between successive book bodies, and means for gluing the stitches.

5. In combination, book body advancing means, means for supplying a wide tape, means for causing the edges of the wide tape to overlap the opposite sides of the book bodies, means for drilling and stitching the overlapped edges and book bodies, means for slitting the wide tape into narrow tapes, and means for severing the narrow tapes between successive book bodies.

6. In combination, means for intermittently advancing book bodies in spaced succession, means for supplying a wide tape, means for causing its edges to overlap the opposite sides of the book bodies, means for securing said overlapped edges to the book bodies, means for slitting the wide tape into narrow tapes, and means 76 controlled by the advancing book bodies for severing the narrow tapes between successive book bodies.

7. In combination, means for intermittently advancing book bodies in spaced succession,

means for supplying a wide tape, means for gumstitching said overlapped edges to the book bodies, means for slitting the wide tape into narrow tapes, and means controlled by the advancing book bodies for severing the narrow tapes between successive book bodies.

8. In combination, means for intermittently advancing book bodies in spaced succession, means for supplying a wide tape, means for gum ming the edges of the wide tape, means for causing the gummed edges to overlap and adhere to the opposite sides of the book bodies, means for stitching said overlapped edges to the book bodies, means for slitting the wide tape into narrow tapes, and stitcher operated means controlled by the advancing book bodies for severing the narrow tapes between successive book bodies.

9. In combination, means for supplying a wide tape, means for advancing successive book bodies with their undersides overlapped by one edge of the wide tape, a former, means for turning the wide tape over the former to cause the other edge to overlap the upper sides of the book bodies, means for stitching said overlapped edges to said book bodies, and. means for slitting the wide tape into narrow tapes.

10. In combination, means for supplying a wide tape, means for advancing successive book bodies with their under sides overlapped by one edge of the wide tape, a former, means for turning the wide tape over the former to cause the other edge to overlap the upper sides of the book bodies, means for stitching said overlapped edges to said book bodies, means for slitting the wide tape into narrow tapes, and means for severing the narrow tapes between successive book bodies.

11. In combination, means for supplying a wide tape, means for gumming the edges of the wide tape, means for advancing successive book bodies with their under sides overlapped by and adhered to one gummed edge, a former, means for turning the wipe tape over the former to cause the other gummed edge to overlap and adhere to the upper sides of the book bodies, means for stitching said overlapped edges to the book bodies, and means for severing the narrow tapes between successive book bodies.

12. In combination, means for supplying a wide tape, means for advancing successive book bodies with their under sides overlapped by one edge of the wide tape, a longitudinally disposed former bar, a book body back gage bar, means for turning the wide tape over the former and gage bars to cause the other edge of the Wide tape to overlap the upper sides of the book bodies, means for stitching said overlapped edges to the book bodies, means on the former bar for slitting the wide tape into narrow tapes, and means for severing the narrow tapes between successive book bodies.

13. In combination, means for supplying a wide tape, means for gumming the edges of the wide tape, means for advancing successive book bodies with their under sides overlapped by and adhered to one gummed edge, a longitudinally disposed former bar, a book body back gage bar, means for turning the wide tape over the former and gage bars to cause the other gummed edge to overlap and adhere to the upper sides of the book bodies, means for stitching said overlapped edges to the book bodies, means on the former bar for slitting the wide tape into narrow tapes, and means for severing the narrow tapes between successive book bodies.

14. In combination, book body advancing means, means for supplying a wide tape, means for causing the edges of the wide tape to overlap the opposite sides of the book bodies, means for securing the overlapping edges to the book bodies, means for slitting the wide tape into upper and lower narrow tapes having free portions, a book body back gage bar, end supports therefor, means for by-passing the free portion of the lower narrow tape around one of the end supports, and. means for severing the narrow tapes between successive book bodies.

15. In combination, book body advancing means, means for supplying a wide tape, means for causing the edges of the wide tape to overlap the opposite sides of the book bodies, means for securing the overlapping edges to the book bodies, means for slitting the wide tape into upper and lower narrow tapes having free portions, a book body back gage bar, end supports therefor, means for causing the free portion of the lower narrow tape to pass under one of the end supports, and means for severing the narrow tapes between successive book bodies.

16. In combination, a table, book body advancing means, a wide tape supply, means for causing the edges of the wide tape to overlap the opposite sides of the book bodies, means for securing the overlapping edges to the book bodies, means for slitting the wide tape into upper and lower narrow tapes having free portions, a book body back gage bar, and an end support therefor, said table having a slot through which the free portion of the lower narrow tape is caused to pass under said end support.

17. In combination, a table, book body ad-' vancing means, means for supplying a wide tape, means for causing the edges of the wide tape to'overlap the opposite sides of the book bodies, means for securing the overlapping edges to the book bodies, means for slitting the wide tape into' upper and lower narrow tapes having free portions, a book body back gage bar, an end support therefor, and means for severing the narrow tapes between successive book bodies, said table having a slot through which the free portion of the lower narrow tape is caused to pass under said end support on its Way to the tape severing means.

18. In combination, means for advancing book bodies provided with upper and lower narrow tapes having free portions, a book body back gage bar, an end support therefor, and means for by-passing the free portion of the lower narrow tape around said end support.

19. In combination, means for advancing book bodies provided with upper and lower narrow tapes having free portions, a book body back gage bar, an end support therefor, means for by-passing the free portion of the lower narrow tape around said end support, and means for severing the narrow tapes between successive book bodies.

20. In combination, a table, a book body back gage bar, end supports therefor, and means for advancing book bodies provided with continuous upper and lower narrow tapes having free portions, said table having an open ended slot through which the free portion of the lower narrow tape is passed under one of the gage bar supports.

21. In combination, means for advancing book bodies provided with continuous upper and lower narrow tapes having free portions, a book body back gage bar having two separated alined sections, end supports for the first section and a single end support for the second section, and means for by-passing the free portion of the lower narrow tape around one of the end supports for the first section.

ELBRIDGE W. PALMER. HERMAN L. BEUTLER. 

